1965465

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:251

約数の個数: 40

約数和(自身を含む): 3693888

約数和(自身を除く): 1728423

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 211, 345, 405, 621, 633, 1035, 1055, 1863, 1899, 3105, 3165, 4853, 5697, 9315, 9495, 14559, 17091, 24265, 28485, 43677, 72795, 85455, 131031, 218385, 393093, 655155, 1965465]

約数ペア:

[(1, 1965465), (3, 655155), (5, 393093), (9, 218385), (15, 131031), (23, 85455), (27, 72795), (45, 43677), (69, 28485), (81, 24265), (115, 17091), (135, 14559), (207, 9495), (211, 9315), (345, 5697), (405, 4853), (621, 3165), (633, 3105), (1035, 1899), (1055, 1863)]